Thanks Louis for another great suggestion ... so far I have only had a glance at the data sheet. As always, TI have done a pretty thorough job on the sheet, and I think it would be a great choice for a 'professional' product.  My only concern is that it maybe a bit scary for a newcomer, as it packs quite a lot of tricks into a small box. So I hope you will not be upset if I also continue to suggest a simpler device like the ULN2003, at least as an 'icebreaker' to smarter things in the future. I encourage all readers, including Bill (@billinfl), to consider the best course of action for their personal project.

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I have finally managed to post my experimental mock up on the forum regarding this whole question. As (no surprise), it is rather long, so I have created a new thread for it to hide in, at:

https://forum.dronebotworkshop.com/technology/widget-weight-counter-using-hx711-and-led-display-feasibility-study/#post-46481

I hope it is self-explanatory, but obviously welcome questions, querying any 'deliberate' errors and so on.

Best wishes and good luck, Dave

 This chip uses constant current source and only requires one resistor! While it's similar to what I did with the Sn74HC595 in a previous post, it can use higher output voltage because it's constant current.. @davee, take a look at the data sheet :https://www.ti.com/lit/ds/symlink/tlc5916.pdf, let me know what you think..

regards,

LouisR

If you posted a pic or some other file in the past and want to attach it to another post, use the My Media.

No comment re the sermons 'accidently' messing up.

 Thanks for your contribution. I too, use CTRL-C, etc. depending on what is most convenient at the time. Unfortunately, I have found this forum also shows the same issue with Ctrl-V, when posting pictures. It doesn't happen all the time, just when it decides not to play nicely ... perhaps it doesn't like my sermons ... !

Best wishes, Dave

  Photos worked fine. I sometimes have photos etc. as files on my PC, and then use Attach Files, rather than drag and drop. I don't why, maybe my ignorance or PC setup, but drag and drop sometimes seems reluctant to play nicely, whilst Attach Files seems more reliable.

Best wishes, Dave

PS I see you posted to me whilst I was typing this note. Thanks for the kind reply. Perhaps you will be able to share the secrets of direct posting of photos on 'bad' days, when you discover them. Some days, it seems easy ... others not so easy!